The review for Army of Two is up at classic vfh here. Now while having a army consisting of two people sounds like a horrible idea on paper, it apparently works. If their is one thing I learned from this game it's that if you want to eliminate an "army" of two mercenaries, just put them in a hovercraft and stick random obstacles around them. Bullets to the face do not phase them, yet a simple nudge of their hovercraft into a wall will blow them the hell up.
UPDATE (3/22/10) VFH Classic is dead, and sadly, this review was unrestorable.